/* get new inode */
if (*pinode == NULL) {
*pinode = new_inode(sb);
- if(*pinode == NULL)
+ if (*pinode == NULL)
return -ENOMEM;
/* Is an i_ino of zero legal? */
/* Are there sanity checks we can use to ensure that
the server is really filling in that field? */
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
(*pinode)->i_ino =
(unsigned long)findData.UniqueId;
} /* note ino incremented to unique num in new_inode */
inode->i_gid = le64_to_cpu(findData.Gid);
inode->i_nlink = le64_to_cpu(findData.Nlinks);
- if(is_size_safe_to_change(cifsInfo)) {
+ if (is_size_safe_to_change(cifsInfo)) {
/* can not safely change the file size here if the
client is writing to it due to potential races */
if (S_ISREG(inode->i_mode)) {
cFYI(1, (" File inode "));
inode->i_op = &cifs_file_inode_ops;
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
inode->i_fop = &cifs_file_direct_ops;
else
inode->i_fop = &cifs_file_ops;
+ if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ inode->i_fop->lock = NULL;
inode->i_data.a_ops = &cifs_addr_ops;
+ /* check if server can support readpages */
+ if(pTcon->ses->server->maxBuf <
+ 4096 + MAX_CIFS_HDR_SIZE)
+ inode->i_data.a_ops->readpages = NULL;
} else if (S_ISDIR(inode->i_mode)) {
cFYI(1, (" Directory inode"));
inode->i_op = &cifs_dir_inode_ops;
pTcon = cifs_sb->tcon;
cFYI(1,("Getting info on %s ", search_path));
- if((pfindData == NULL) && (*pinode != NULL)) {
- if(CIFS_I(*pinode)->clientCanCacheRead) {
+ if ((pfindData == NULL) && (*pinode != NULL)) {
+ if (CIFS_I(*pinode)->clientCanCacheRead) {
cFYI(1,("No need to revalidate cached inode sizes"));
return rc;
}
}
/* if file info not passed in then get it from server */
- if(pfindData == NULL) {
+ if (pfindData == NULL) {
buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
- if(buf == NULL)
+ if (buf == NULL)
return -ENOMEM;
pfindData = (FILE_ALL_INFO *)buf;
/* could do find first instead but this returns more info */
rc = CIFSSMBQPathInfo(xid, pTcon, search_path, pfindData,
- cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
+ /* BB optimize code so we do not make the above call
+ when server claims no NT SMB support and the above call
+ failed at least once - set flag in tcon or mount */
+ if((rc == -EOPNOTSUPP) || (rc == -EINVAL)) {
+ rc = SMBQueryInformation(xid, pTcon, search_path,
+ pfindData, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ }
+
}
/* dump_mem("\nQPathInfo return data",&findData, sizeof(findData)); */
if (rc) {
IndexNumber field is not guaranteed unique? */
#ifdef CONFIG_CIFS_EXPERIMENTAL
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM){
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM){
int rc1 = 0;
__u64 inode_num;
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- if(rc1) {
+ if (rc1) {
cFYI(1,("GetSrvInodeNum rc %d", rc1));
/* BB EOPNOSUPP disable SERVER_INUM? */
} else /* do we need cast or hash to ino? */
on dirs */
inode->i_mode = cifs_sb->mnt_dir_mode;
inode->i_mode |= S_IFDIR;
+ } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
+ (cifsInfo->cifsAttrs & ATTR_SYSTEM) &&
+ /* No need to le64 convert size of zero */
+ (pfindData->EndOfFile == 0)) {
+ inode->i_mode = cifs_sb->mnt_file_mode;
+ inode->i_mode |= S_IFIFO;
+/* BB Finish for SFU style symlinks and devies */
+/* } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
+ (cifsInfo->cifsAttrs & ATTR_SYSTEM) && ) */
+
} else {
inode->i_mode |= S_IFREG;
/* treat the dos attribute of read-only as read-only
if (S_ISREG(inode->i_mode)) {
cFYI(1, (" File inode "));
inode->i_op = &cifs_file_inode_ops;
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
inode->i_fop = &cifs_file_direct_ops;
else
inode->i_fop = &cifs_file_ops;
+ if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ inode->i_fop->lock = NULL;
inode->i_data.a_ops = &cifs_addr_ops;
+ if(pTcon->ses->server->maxBuf <
+ 4096 + MAX_CIFS_HDR_SIZE)
+ inode->i_data.a_ops->readpages = NULL;
} else if (S_ISDIR(inode->i_mode)) {
cFYI(1, (" Directory inode "));
inode->i_op = &cifs_dir_inode_ops;
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
if (!rc) {
- if(direntry->d_inode)
+ if (direntry->d_inode)
direntry->d_inode->i_nlink--;
} else if (rc == -ENOENT) {
d_drop(direntry);
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
CIFSSMBClose(xid, pTcon, netfid);
- if(direntry->d_inode)
+ if (direntry->d_inode)
direntry->d_inode->i_nlink--;
}
} else if (rc == -EACCES) {
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
if (!rc) {
- if(direntry->d_inode)
+ if (direntry->d_inode)
direntry->d_inode->i_nlink--;
} else if (rc == -ETXTBSY) {
int oplock = FALSE;
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
CIFSSMBClose(xid, pTcon, netfid);
- if(direntry->d_inode)
+ if (direntry->d_inode)
direntry->d_inode->i_nlink--;
}
/* BB if rc = -ETXTBUSY goto the rename logic BB */
}
}
}
- if(direntry->d_inode) {
+ if (direntry->d_inode) {
cifsInode = CIFS_I(direntry->d_inode);
cifsInode->time = 0; /* will force revalidate to get info
when needed */
rc = cifs_get_inode_info(&newinode, full_path, NULL,
inode->i_sb,xid);
- direntry->d_op = &cifs_dentry_ops;
+ if (pTcon->nocase)
+ direntry->d_op = &cifs_ci_dentry_ops;
+ else
+ direntry->d_op = &cifs_dentry_ops;
d_instantiate(direntry, newinode);
if (direntry->d_inode)
direntry->d_inode->i_nlink = 2;
if (cifs_sb->tcon->ses->capabilities & CAP_UNIX)
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
CIFSSMBUnixSetPerms(xid, pTcon, full_path,
mode,
(__u64)current->euid,
struct cifsTconInfo *pTcon;
char *full_path = NULL;
int rc = -EACCES;
- int found = FALSE;
struct cifsFileInfo *open_file = NULL;
FILE_BASIC_INFO time_buf;
int set_time = FALSE;
__u64 uid = 0xFFFFFFFFFFFFFFFFULL;
__u64 gid = 0xFFFFFFFFFFFFFFFFULL;
struct cifsInodeInfo *cifsInode;
- struct list_head *tmp;
xid = GetXid();
filemap_fdatawait(direntry->d_inode->i_mapping);
if (attrs->ia_valid & ATTR_SIZE) {
- read_lock(&GlobalSMBSeslock);
/* To avoid spurious oplock breaks from server, in the case of
inodes that we already have open, avoid doing path based
setting of file size if we can do it by handle.
when the local oplock break takes longer to flush
writebehind data than the SMB timeout for the SetPathInfo
request would allow */
- list_for_each(tmp, &cifsInode->openFileList) {
- open_file = list_entry(tmp, struct cifsFileInfo,
- flist);
- /* We check if file is open for writing first */
- if ((open_file->pfile) &&
- ((open_file->pfile->f_flags & O_RDWR) ||
- (open_file->pfile->f_flags & O_WRONLY))) {
- if (open_file->invalidHandle == FALSE) {
- /* we found a valid, writeable network
- file handle to use to try to set the
- file size */
- __u16 nfid = open_file->netfid;
- __u32 npid = open_file->pid;
- read_unlock(&GlobalSMBSeslock);
- found = TRUE;
- rc = CIFSSMBSetFileSize(xid, pTcon,
- attrs->ia_size, nfid, npid,
- FALSE);
- cFYI(1, ("SetFileSize by handle "
- "(setattrs) rc = %d", rc));
- /* Do not need reopen and retry on
- EAGAIN since we will retry by
- pathname below */
-
- /* now that we found one valid file
- handle no sense continuing to loop
- trying others, so break here */
- break;
- }
+ open_file = find_writable_file(cifsInode);
+ if (open_file) {
+ __u16 nfid = open_file->netfid;
+ __u32 npid = open_file->pid;
+ rc = CIFSSMBSetFileSize(xid, pTcon, attrs->ia_size,
+ nfid, npid, FALSE);
+ atomic_dec(&open_file->wrtPending);
+ cFYI(1,("SetFSize for attrs rc = %d", rc));
+ if(rc == -EINVAL) {
+ int bytes_written;
+ rc = CIFSSMBWrite(xid, pTcon,
+ nfid, 0, attrs->ia_size,
+ &bytes_written, NULL, NULL,
+ 1 /* 45 seconds */);
+ cFYI(1,("Wrt seteof rc %d", rc));
}
}
- if (found == FALSE)
- read_unlock(&GlobalSMBSeslock);
-
if (rc != 0) {
/* Set file size by pathname rather than by handle
either because no valid, writeable file handle for
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- cFYI(1, (" SetEOF by path (setattrs) rc = %d", rc));
+ cFYI(1, ("SetEOF by path (setattrs) rc = %d", rc));
+ if(rc == -EINVAL) {
+ __u16 netfid;
+ int oplock = FALSE;
+
+ rc = SMBLegacyOpen(xid, pTcon, full_path,
+ FILE_OPEN,
+ SYNCHRONIZE | FILE_WRITE_ATTRIBUTES,
+ CREATE_NOT_DIR, &netfid, &oplock,
+ NULL, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc==0) {
+ int bytes_written;
+ rc = CIFSSMBWrite(xid, pTcon,
+ netfid, 0,
+ attrs->ia_size,
+ &bytes_written, NULL,
+ NULL, 1 /* 45 sec */);
+ cFYI(1,("wrt seteof rc %d",rc));
+ CIFSSMBClose(xid, pTcon, netfid);
+ }
+
+ }
}
/* Server is ok setting allocation size implicitly - no need
rc = vmtruncate(direntry->d_inode, attrs->ia_size);
cifs_truncate_page(direntry->d_inode->i_mapping,
direntry->d_inode->i_size);
- }
+ } else
+ goto cifs_setattr_exit;
}
if (attrs->ia_valid & ATTR_UID) {
- cFYI(1, (" CIFS - UID changed to %d", attrs->ia_uid));
+ cFYI(1, ("UID changed to %d", attrs->ia_uid));
uid = attrs->ia_uid;
- /* entry->uid = cpu_to_le16(attr->ia_uid); */
}
if (attrs->ia_valid & ATTR_GID) {
- cFYI(1, (" CIFS - GID changed to %d", attrs->ia_gid));
+ cFYI(1, ("GID changed to %d", attrs->ia_gid));
gid = attrs->ia_gid;
- /* entry->gid = cpu_to_le16(attr->ia_gid); */
}
time_buf.Attributes = 0;
if (attrs->ia_valid & ATTR_MODE) {
- cFYI(1, (" CIFS - Mode changed to 0x%x", attrs->ia_mode));
+ cFYI(1, ("Mode changed to 0x%x", attrs->ia_mode));
mode = attrs->ia_mode;
- /* entry->mode = cpu_to_le16(attr->ia_mode); */
}
if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX)
cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_mtime));
} else
time_buf.LastWriteTime = 0;
-
- if (attrs->ia_valid & ATTR_CTIME) {
+ /* Do not set ctime explicitly unless other time
+ stamps are changed explicitly (i.e. by utime()
+ since we would then have a mix of client and
+ server times */
+
+ if (set_time && (attrs->ia_valid & ATTR_CTIME)) {
set_time = TRUE;
- cFYI(1, (" CIFS - CTIME changed ")); /* BB probably no need */
+ /* Although Samba throws this field away
+ it may be useful to Windows - but we do
+ not want to set ctime unless some other
+ timestamp is changing */
+ cFYI(1, ("CIFS - CTIME changed "));
time_buf.ChangeTime =
cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_ctime));
} else
time_buf.ChangeTime = 0;
if (set_time || time_buf.Attributes) {
- /* BB what if setting one attribute fails (such as size) but
- time setting works? */
time_buf.CreationTime = 0; /* do not change */
/* In the future we should experiment - try setting timestamps
via Handle (SetFileInfo) instead of by path */
&time_buf, cifs_sb->local_nls); */
}
}
+ /* Even if error on time set, no sense failing the call if
+ the server would set the time to a reasonable value anyway,
+ and this check ensures that we are not being called from
+ sys_utimes in which case we ought to fail the call back to
+ the user when the server rejects the call */
+ if((rc) && (attrs->ia_valid &&
+ (ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE)))
+ rc = 0;
}
/* do not need local check to inode_check_ok since the server does
that */
if (!rc)
rc = inode_setattr(direntry->d_inode, attrs);
+cifs_setattr_exit:
kfree(full_path);
FreeXid(xid);
return rc;